Fix failed cgemv and zgemv test case after using msa optimization

The cgemv and zgemv test case will call cgemv_n/t_msa.c zgemv_n/t_msa.c files in MIPS environment.
When the macro CONJ is defined, the calculation result will be wrong due to the wrong definition of OP2.
This patch updates the value of OP2 and passes the corresponding test.

Author: CNClareChen

kernel/mips/cgemv_n_msa.c

@@ -56,11 +56,11 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     #if !defined(XCONJ)
         #define OP0  +=
         #define OP1  -=
-        #define OP2  -=
+        #define OP2  +=
     #else
         #define OP0  -=
         #define OP1  -=
-        #define OP2  +=
+        #define OP2  -=
     #endif
 #endif
 

kernel/mips/cgemv_t_msa.c

@@ -32,14 +32,26 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #undef OP1
 #undef OP2
 
-#if ( !defined(CONJ) && !defined(XCONJ) ) || ( defined(CONJ) && defined(XCONJ) )
-    #define OP0  -=
-    #define OP1  +=
-    #define OP2  +=
+#if !defined(CONJ)
+    #if !defined(XCONJ)
+        #define OP0  -=
+        #define OP1  +=
+        #define OP2  +=
+    #else
+        #define OP0  +=
+        #define OP1  +=
+        #define OP2  -=
+    #endif
 #else
-    #define OP0  +=
-    #define OP1  +=
-    #define OP2  -=
+    #if !defined(XCONJ)
+        #define OP0  +=
+        #define OP1  -=
+        #define OP2  +=
+    #else
+        #define OP0  -=
+        #define OP1  -=
+        #define OP2  -=
+    #endif
 #endif
 
 #define CGEMV_T_8x4()                        \

kernel/mips/zgemv_n_msa.c

@@ -56,11 +56,11 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     #if !defined(XCONJ)
         #define OP0  +=
         #define OP1  -=
-        #define OP2  -=
+        #define OP2  +=
     #else
         #define OP0  -=
         #define OP1  -=
-        #define OP2  +=
+        #define OP2  -=
     #endif
 #endif
 

kernel/mips/zgemv_t_msa.c

@@ -34,14 +34,26 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #undef OP3
 #undef OP4
 
-#if ( !defined(CONJ) && !defined(XCONJ) ) || ( defined(CONJ) && defined(XCONJ) )
-    #define OP0  -=
-    #define OP1  +=
-    #define OP2  +=
+#if !defined(CONJ)
+    #if !defined(XCONJ)
+        #define OP0  -=
+        #define OP1  +=
+        #define OP2  +=
+    #else
+        #define OP0  +=
+        #define OP1  +=
+        #define OP2  -=
+    #endif
 #else
-    #define OP0  +=
-    #define OP1  +=
-    #define OP2  -=
+    #if !defined(XCONJ)
+        #define OP0  +=
+        #define OP1  -=
+        #define OP2  +=
+    #else
+        #define OP0  -=
+        #define OP1  -=
+        #define OP2  -=
+    #endif
 #endif
 
 #define ZGEMV_T_8x1()                     \